Table Of Content-
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NAVAL POSTGRADUATE SCHOOL
Monterey
California
,
THESIS
ELECTRONIC DATA INTERCHANGE
by
Chung, Jae Du
March 1991
Thesis Advisor: Myung W. Suh
Approved for public release; distribution is unlimited
T256814
Unclassified
security classification of this page
REPORT DOCUMENTATION PAGE
la Report Security Classification Lnclassified lb Restrictive Markings
2a Security Classification Authority 3 Distribution Availability of Report
2b Declassification Downgrading Schedule Approved for public release; distribution is unlimited.
4 Performing Organization Report Number(s) 5 Monitoring Organization Report Number(s)
6a Name of Performing Organization 6b Office Symbol 7a Name of Monitoring Organization
Naval Postcraduate School (ifapplicable) 32 Naval Postgraduate School
6c Address (city, stare, and ZIP code) 7b Address (city, state, and ZIP code)
Monterev, CA 93943-5000 Monterev. CA 93943-5000
8a Name of Funding Sponsoring Organization 8b Office Symbol 9 Procurement Instrument Identification Number
(ifapplicable)
8c Address (city, state, and ZIP code) 10 Source of Funding Numbers
Program Element No Project No Task No Work Unit Accession No
ELECTRONIC DATA INTERCHANGE
11 Title (includesecurity classification)
12 Personal Author(s) Chuns, J. D.
13a Type of Report 13b Time Covered 14 Date of Report (year, month, day) 15 Paee Count
Master's Thesis From To March 1991 85
16 Supplementary Notation The views expressed in this thesis are those of the author and do not reflect the official policy or po-
sition ofthe Department of Defense or the U.S. Government.
17 Cosati Codes 18 Subject Terms (continue on reverseIfnecessary andidentify by block number)
:ield Group Subgroup Electrionc Data Interchange
19 Abstract (continueon reverseifnecessary andidentify by block number)
Electronic data interchange (EDI) is the intercompany, computer-to-computer exchange
of business documents in standard formats. The direct benefits of EDI consist in cost
savings, operational accuracy, and speedy processing of transactions. This thesis provides
guidelines to develop an EDI (Electronic Data Interchange) system. It discusses the basic
concepts, standards, data mappping, hardware and software requirements, and networking
requirements. Also discussed are some auditing and security issues in implementing EDI.
20 Distribution Availability ofAbstract 21 Abstract Security Classification
IS unclassified,unlimited same as report DTIC Unclassified
users
22a Name of Responsible Individual 22b Telephone (include Area c?2Lto Office Svmbol
Mvune W. Suh (408)646-2637 54Su
DD FORM 1473,84 MAR 53 APR edition may be used until exhausted security classification ofthis page
All other editions are obsolete
Unclassified
Approved for public release; distribution is unlimited.
Electronic Data Interchange
by
Chung, J. D.
MAJOR, Korean Army
B.S., Youn Sei University, Korea, 1987
Submitted in partial fulfillment ofthe
requirements for the degree of
MASTER OE SCIENCE IN TELECOMMUNICATIONS SYSTEMS
MANAGEMENT
from the
NAVAL POSTGRADUATE SCHOOL
March 1991
David R.Whipple, Chairman,
Department ofAdministrative Sciences
ABSTRACT
Electronic data interchange (EDI) is the intercompany, computer-to-
computer exchange of business documents in standard formats. The di-
rect benefits of EDI consist in cost savings, operational accuracy, and
speedy processing of transactions. This thesis provides guidelines to de-
velop an EDI (Electronic Data Interchange) system. It discusses the basic
concepts, standards, data mappping, hardware and software requirements,
and networking requirements. Also discussed are some auditing and se-
curity issues in implementing EDI.
111
C.I
TABLE OF CONTENTS
INTRODUCTION
I. 1
EDI DEVELOPMENT AND STANDARDS
II. 4
OVERVIEW
A. 4
ANSI X12 STANDARDS
B. 6
1. Organization of ANSI ASC X12 6
2. Description of ANSI X12 standards 11
EDIFACT
C. 17
CALS
D. 20
Background 20
!.
2. What is CALS? 22
3. Relationship between EDI and CALS 24
ANALYSIS OF TRANSACTION AND DATA MAPPING
III. 26
.
TRANSACTION AND DATA FLOW
A. 26
DATA MAPPING
B. 33
The paper system 35
1.
2. Integrating with the existing database 36
3. Integrating with existing applications/processes 38
4. Developing new applications/processes based on EDI ... 39
5. Fully integrated application/EDI system development ... 41
HARDWARE AND SOFTWARE REQUIREMENTS
IV. 43
HARDWARE REQUIREMENTS
A. 43
IV
